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Roger Greenhalgh
Roger Malcolm Greenhalgh (6 February 1941 – 6 October 2023) was a British surgeon, researcher and educator best known for his contributions to the field of vascular surgery. He was emeritus Professor of Surgery at Imperial College London in London, England and Head of the Imperial College Vascular Surgery Research Group at the time of his death. Greenhalgh was also the founder and chair of the Charing Cross Symposium between 1978 and 2023. He played a significant role in the formation of the European Society for Vascular Surgery, and is credited with being an early adopter of the concept of large-scale, randomised clinical trials, helping to establish them as a means for evaluating surgical techniques. Early life and education Roger M. Greenhalgh was born in Ilkeston, Derbyshire, in the East Midlands of England on February 6, 1941 to (Major) John Greenhalgh and Phyllis Poynton. At the time of his birth, Greenhalgh's father was working in the police force in Derbyshire before b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charing Cross And Westminster Medical School
Charing Cross and Westminster Medical School existed as a legal entity for 13 years, as the midpoint of a series of mergers which strategically consolidated the many small medical schools in west London into one large institution under the aegis of Imperial College London. In 1984, Charing Cross Hospital Medical School and Westminster Hospital Medical School merged to form the Charing Cross and Westminster Medical School. This move was part of a series of mergers in the London medical schools in the early 1980s, which foreshadowed the second, larger round of mergers in the late 1990s. Based at the Charing Cross Hospital site in Hammersmith and Chelsea and Westminster Hospital in Chelsea, the new medical school took the form of its larger precursor ( CXHMS) in using "X" as an abbreviation for "Cross". The medical school also maintained academic units at the university hospitals of Queen Mary's Roehampton, West Middlesex, Ashford and Hillingdon. In 1997, CXWMS merged with Impe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
COVID-19 Pandemic
The COVID-19 pandemic (also known as the coronavirus pandemic and COVID pandemic), caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), began with an disease outbreak, outbreak of COVID-19 in Wuhan, China, in December 2019. Soon after, it spread to other areas of Asia, and COVID-19 pandemic by country and territory, then worldwide in early 2020. The World Health Organization (WHO) declared the outbreak a public health emergency of international concern (PHEIC) on 30 January 2020, and assessed the outbreak as having become a pandemic on 11 March. COVID-19 symptoms range from asymptomatic to deadly, but most commonly include fever, sore throat, nocturnal cough, and fatigue. Transmission of COVID-19, Transmission of the virus is often airborne transmission, through airborne particles. Mutations have variants of SARS-CoV-2, produced many strains (variants) with varying degrees of infectivity and virulence. COVID-19 vaccines were developed rapidly and deplo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Olympia London
Olympia Events, formerly known as Olympia London and sometimes referred to as the Olympia Exhibition Centre, is an exhibition centre, event space and conference centre in West Kensington, in the London Borough of Hammersmith and Fulham, London, England. A range of international trade and consumer exhibitions, conferences and sporting events are staged at the venue. There is an adjacent railway station at Kensington (Olympia) which is both a London Overground station, and a London Underground station. The direct District Line spur to the station only runs at weekends. Background The complex first opened in 1886. The Grand Hall and Pillar Hall were completed in 1885. The National Hall annexe was completed in 1923, and in 1930 the Empire Hall was added. After World War II, the West London exhibition hall was in single ownership with the larger nearby Earls Court Exhibition Centre. The latter was built in the 1930s as a rival to Olympia. In 2008, ownership of the two ve ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vascular Surgery
Vascular surgery is a surgical subspecialty in which vascular diseases involving the arteries, veins, or lymphatic vessels, are managed by medical therapy, minimally-invasive catheter procedures and surgical reconstruction. The specialty evolved from general surgery, general and cardiac surgery, cardiovascular surgery where it refined the management of just the vessels, no longer treating the heart or other organs. Modern vascular surgery includes open surgery techniques, endovascular (minimally invasive) techniques and medical management of vascular diseases - unlike the parent specialities. The vascular surgeon is trained in the diagnosis and management of diseases affecting all parts of the vascular system excluding the coronaries and intracranial vasculature. Vascular surgeons also are called to assist other physicians to carry out surgery near vessels, or to salvage vascular injuries that include hemorrhage control, dissection, occlusion or simply for safe exposure of vascul ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Randomized Controlled Trial
A randomized controlled trial (or randomized control trial; RCT) is a form of scientific experiment used to control factors not under direct experimental control. Examples of RCTs are clinical trials that compare the effects of drugs, surgical techniques, medical devices, diagnostic procedures, diets or other medical treatments. Participants who enroll in RCTs differ from one another in known and unknown ways that can influence study outcomes, and yet cannot be directly controlled. By randomly allocating participants among compared treatments, an RCT enables ''statistical control'' over these influences. Provided it is designed well, conducted properly, and enrolls enough participants, an RCT may achieve sufficient control over these confounding factors to deliver a useful comparison of the treatments studied. Definition and examples An RCT in clinical research typically compares a proposed new treatment against an existing standard of care; these are then termed the 'expe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endovascular Aneurysm Repair
Endovascular aneurysm repair (EVAR) is a type of minimally-invasive endovascular surgery used to treat pathology of the aorta, most commonly an abdominal aortic aneurysm (AAA). When used to treat thoracic aortic disease, the procedure is then specifically termed TEVAR for "thoracic endovascular aortic/aneurysm repair." EVAR involves the placement of an expandable stent graft within the aorta to treat aortic disease without operating directly on the aorta. In 2003, EVAR surpassed open aortic surgery as the most common technique for repair of AAA, and in 2010, EVAR accounted for 78% of all intact AAA repair in the United States. Medical uses Standard EVAR is appropriate for aneurysms that begin below the renal arteries, where there exists an adequate length of normal aorta (the ''"proximal aortic neck"'') for reliable attachment of the endograft without leakage of blood around the device ("'' endoleak''"). If the proximal aortic neck is also involved with the aneurysm, the pati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Abdominal Aortic Aneurysm
Abdominal aortic aneurysm (AAA) is a localized enlargement of the abdominal aorta such that the diameter is greater than 3 cm or more than 50% larger than normal. An AAA usually causes no symptoms, except during rupture. Occasionally, abdominal, back, or leg pain may occur. Large aneurysms can sometimes be felt by pushing on the abdomen. Aortic rupture, Rupture may result in pain in the abdomen or back, hypotension, low blood pressure, or Syncope (medicine), loss of consciousness, and often results in death. AAAs occur most commonly in men, those over 50, and those with a family history of the disease. Additional risk factors include smoking, hypertension, high blood pressure, and other cardiovascular disease, heart or blood vessel diseases. Genetic conditions with an increased risk include Marfan syndrome and Ehlers–Danlos syndromes, Ehlers–Danlos syndrome. AAAs are the most common form of aortic aneurysm. About 85% occur below the kidneys, with the rest either at the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Lancet
''The Lancet'' is a weekly peer-reviewed general medical journal, founded in England in 1823. It is one of the world's highest-impact academic journals and also one of the oldest medical journals still in publication. The journal publishes original research articles, review articles ("seminars" and "reviews"), editorials, book reviews, correspondence, as well as news features and case reports. ''The Lancet'' has been owned by Elsevier since 1991, and its editor-in-chief since 1995 has been Richard Horton. The journal has editorial offices in London, New York City, and Beijing. History ''The Lancet'' was founded in 1823 by Thomas Wakley, an English surgeon who named it after the surgical instrument called a lancet (scalpel). According to BBC, the journal was initially considered to be radical following its founding. Members of the Wakley family retained editorship of the journal until 1908. In 1921, ''The Lancet'' was acquired by Hodder & Stoughton. Elsevier acquire ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peripheral Artery Disease
Peripheral artery disease (PAD) is a vascular disorder that causes abnormal narrowing of arteries other than those that supply the heart or brain. PAD can happen in any blood vessel, but it is more common in the legs than the arms. When narrowing occurs in the heart, it is called coronary artery disease (CAD), and in the brain, it is called cerebrovascular disease. Peripheral artery disease most commonly affects the legs, but other arteries may also be involved, such as those of the arms, neck, or kidneys. Peripheral artery disease (PAD) is a form of peripheral vascular disease. Vascular refers to the arteries and veins within the body. PAD differs from peripheral veinous disease. PAD means the arteries are narrowed or blocked—the vessels that carry oxygen-rich blood as it moves from the heart to other parts of the body. Peripheral veinous disease, on the other hand, refers to problems with veins—the vessels that bring the blood back to the heart. The classic symptom ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Denton Cooley
Denton Arthur Cooley (August 22, 1920 – November 18, 2016) was an American cardiothoracic surgeon famous for performing the first implantation of a total artificial heart. Cooley was also the founder and surgeon in-chief of The Texas Heart Institute, chief of Cardiovascular Surgery at clinical partner Baylor St. Luke's Medical Center, consultant in Cardiovascular Surgery at Texas Children's Hospital and a clinical professor of Surgery at McGovern Medical School at the University of Texas Health Science Center at Houston. School and early career Cooley was born August 22, 1920, in Houston, and graduated in 1941 from the University of Texas at Austin (UT), where he was a member of Kappa Sigma fraternity and the Texas Cowboys, played on the basketball team, and majored in zoology. He became interested in surgery through several pre-medical classes he attended in college and began his medical education at the University of Texas Medical Branch in Galveston. He comp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Michael DeBakey
Michael Ellis DeBakey (September 7, 1908 – July 11, 2008) was an American general and cardiovascular surgeon, scientist and medical educator who became Chairman of the Department of Surgery, President, and Chancellor of Baylor College of Medicine at the Texas Medical Center in Houston, Texas. His career spanned nearly eight decades. Born to Lebanese immigrants, DeBakey was inspired to pursue a career in medicine by the physicians that he had met at his father's drug store, and he simultaneously learned sewing skills from his mother. He subsequently attended Tulane University for his premedical course and Tulane University School of Medicine to study medicine. At Tulane, he developed a version of the roller pump, which he initially used to transfuse blood directly from person to person and which later became a component of the heart–lung machine. Following early surgical training at Charity Hospital, DeBakey was encouraged to complete his surgical fellowships in Europe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
